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USDA Hardiness Zone 8b

Frost Dates for 75568 — Naples, Texas

NOAA 1991–2020 normals from Dekalb, TX (341 ft), 19 miles north.

Updated

In Naples, the last spring frost (32°F) is around March 26 in half of years and has passed by April 14 in nine years out of ten. The first fall frost comes around November 6, as early as October 22 one year in ten, leaving a typical freeze-free season of 225 days (NOAA, Dekalb, TX).

Last spring frost
March 26

50% probability

First fall frost
November 6

50% probability

Growing season
225 days

freeze-free, 50%

Hardiness zone
8b

15 to 20°F (-9.4 to -6.7°C) coldest night

First snow
Rare

median, 1991–2020

Last snow
Rare

median, 1991–2020

Winters with snow
19%

5 of 26 observed

Snow per year
1.2"

NOAA normal

Frost risk by date in Naples

Half of springs at Dekalb, TX see their last 32°F night by March 26; only one in ten is past it by March 6, and one in ten still has one after April 14. Planting tender crops after April 2 leaves a 30% risk of a frost on them, after April 6 20%, and after April 14 10%. The 19 days between the even-odds date and the one-in-ten date is narrower than at 63% of the 339 Texas stations behind this site's ZIP pages.

In fall the first 32°F night comes by November 6 in half of years, as early as October 22 one year in ten, and holds off past November 24 one year in ten. A hard freeze of 28°F follows 10 days later, around November 16; in spring the one-in-ten date for 28°F is March 31, 14 days before the 32°F one. The freeze-free season lasts 225 days in a typical year, shorter than at 81% of the 339 Texas stations; it reaches 249 days one year in ten and falls short of 202 one year in ten. On average 49 nights a year drop to 32°F or below. Nights of 36°F, when frost can still settle on leaves in low, open spots, continue 12 days longer, to about April 7, and return around October 29. Nights of 24°F, cold enough to damage hardier plants, come in 100% of winters and 16°F in 71%.

Spring: the chance of another night this cold after the date
Low90%80%70%60%50%40%30%20%10%
36°FMar 20Mar 27Mar 31Apr 4Apr 7Apr 10Apr 15Apr 19Apr 24
32°FMar 6Mar 13Mar 17Mar 22Mar 26Mar 30Apr 2Apr 6Apr 14
28°FFeb 21Feb 28Mar 3Mar 7Mar 11Mar 15Mar 19Mar 23Mar 31
24°FJan 31Feb 9Feb 17Feb 23Feb 28Mar 3Mar 6Mar 11Mar 17
20°F96% of yrsJan 7Jan 17Jan 27Jan 31Feb 7Feb 14Feb 21Feb 28Mar 6
16°F71% of yrsDec 25Jan 4Jan 10Jan 16Jan 23Jan 29Feb 3Feb 12Feb 25
Fall: the chance the first night this cold has come by the date
Low10%20%30%40%50%60%70%80%90%
36°FOct 14Oct 19Oct 23Oct 26Oct 29Nov 1Nov 3Nov 7Nov 12
32°FOct 22Oct 28Nov 1Nov 3Nov 6Nov 9Nov 13Nov 17Nov 24
28°FOct 31Nov 5Nov 8Nov 12Nov 16Nov 21Nov 26Dec 1Dec 6
24°FNov 9Nov 15Nov 20Nov 25Nov 30Dec 4Dec 9Dec 17Dec 25
20°F96% of yrsNov 21Nov 30Dec 5Dec 11Dec 19Dec 25Dec 30Jan 5Jan 16
16°F71% of yrsDec 5Dec 13Dec 24Dec 30Jan 2Jan 7Jan 12Jan 19Feb 1

Freeze probabilities 1991–2020 at Dekalb, TX, from NOAA NCEI U.S. Climate Normals. Where a temperature is reached in fewer than 99.5% of years, the dates describe only the years that reach it. Not a forecast.

Frost risk on any date in 75568 →Compare Naples with another place →

Weather by month in Naples

July is the warmest month at Dekalb, TX, averaging 93°F by day and 70°F at night; January is the coldest at 56°F and 32°F. A freezing night is all but certain in every month from November to March (a 90% chance or more). From May to September the chance of a 32°F night stays under 10% each month. In spring, April still brings one in 35% of years.

Warmth for growing adds up to 5,574 growing degree days a year (base 50°F), fewer than at 87% of the 351 Texas stations. 39% of them (2,182) have built up by the end of June, and July adds the most, 984. Precipitation totals 52.7 inches a year, most in April (5.4") and least in August (3.0"); May to September bring 37% of it.

Monthly normals 1991–2020 at Dekalb, TX
MonthHigh °FLow °FPrecip. in32°F nightNights ≤ 32°FGDD 50°F
Jan56324.1100%1645
Feb59354.2100%1067
Mar67424.992%4205
Apr75505.435%<1382
May82604.90%0651
Jun89674.00%0832
Jul93703.30%0984
Aug94693.00%0973
Sep88634.10%0756
Oct77515.328%1442
Nov66414.594%6172
Dec57345.0100%1265

Monthly normals 1991–2020 at Dekalb, TX (341 ft), NOAA NCEI. "32°F night": chance of at least one in the month. GDD: growing degree days, base 50°F.

Compared with the next station

The nearest other station, Daingerfield 9 S, TX, 20 miles south of Naples, has a last frost 18 days earlier (March 8), a first frost 16 days later (November 22), a season 34 days longer.

Frost dates for 75638 (Daingerfield) →

When it snows in Naples, Texas

Measurable snow is rare here: only 5 of 26 winters from 1991 to 2020 recorded 0.1 inch or more at Maud, TX, 18.7 miles away, so there is no typical first-snow date to plan around.

Planting calendar for 75568

What to do and when, from the 50% frost dates for Naples, Texas
WhenWhat to do
January 15 – January 29Start peppers and aubergines indoorsThey need eight to ten weeks under lights before they can go out.
January 29 – February 12Start tomatoes indoorsSix to eight weeks gives a transplant big enough to set fruit early.
February 26 – March 12Sow peas, spinach, lettuce, radish outdoorsThese tolerate light frost and prefer to germinate in cool soil.
March 26 onwardTransplant tomatoes, peppers, basil, squash, cucumbersThe average last freeze has passed — still watch the actual forecast.
by August 14Sow the autumn crop of carrots, beets and brassicasThey need about twelve weeks to size up before growth stops.
by October 23Harvest tender crops, or be ready to cover themA first freeze two weeks early is well within normal variation.
November 6 onwardPlant garlic, mulch beds, lift tender bulbsGarlic wants a cold spell; bare soil loses structure over winter.

The weeks before and after the 50% dates are general rules of thumb, not NOAA figures; a seed packet gives the timing for each variety.

Where these figures come from

ZIP 75568 is 19 miles from Dekalb, TX, which stands at 341 feet, the nearest NOAA station that publishes freeze probabilities for 1991–2020. 3 other ZIP codes share the station; its figures are presented in full for 75570 (New Boston). The 2023 USDA Plant Hardiness Zone Map lists ZIP 75568 in zone 8b, the band where the coldest night of the year averaged 15 to 20°F (-9.4 to -6.7°C) over 1991–2020; a zone describes winter lows, not frost dates.

Frost dates across Texas →

Hardiness zone and temperature range: USDA Plant Hardiness Zone Map 2023 (USDA-ARS, Oregon State University), ZIP-code listing, unchanged. °C converted from °F by this site.

Thirty-year averages, not a forecast: check the forecast before planting out. How stations are matched and which pages are offered to search engines: methodology.

ZIP codes measured at the same station

Other zone 8b places in Texas